This marks the second collaboration of Farhan and Priyanka after 'Dil Dhadakne Do' and it also mark PeeCee comeback after 3 years of hiatus in Bollywood, she was last seen in Prakash Jha's cop drama, 'Jai Gangaajal'.

Director Shonali Bose said, "Priyanka was always my first choice. She suits the character really well. The film is based on a true story. The script was first picked by producer Siddharth Roy Kapur and he was on the same page as me as far as the casting went."

She also clarified that pulmonary fibrosis of Aisha's life is just a part of the film but it majorly focuses on Aisha's parents bonding, she adds, "Pulmonary fibrosis is a part of the film. It is a true story and it is the journey of how you deal with it."